Nanodiscs versus macrodiscs for NMR of membrane proteins.
Nanodiscs versus macrodiscs for NMR of membrane proteins.
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DOI:
10.1021/bi201289c
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发表时间:
2011-10-25
期刊:
影响因子:
2.9
通讯作者:
Opella SJ
中科院分区:
文献类型:
--
作者:
Park SH;Berkamp S;Cook GA;Chan MK;Viadiu H;Opella SJ
It is challenging to find membrane mimics that stabilize the native structure, dynamics, and functions of membrane proteins. In a recent advance, nanodiscs have been shown to provide a bilayer environment compatible with solution NMR. Increasing the lipid to “belt” peptide ratio expands their diameter, slows their reorientation rate, and enables the protein-containing discs to be aligned in a magnetic field for Oriented Sample solid-state NMR. Here, we compare the spectroscopic properties of membrane proteins with between one and seven trans-membrane helices in q=0.1 isotropic bi-celles, ∼10 nm diameter isotropic nanodiscs, ∼30 nm diameter magnetically aligned macrodiscs, and q=5 bicelles.
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